R Under development (unstable) (2025-12-11 r89152 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(nn2poly)
> 
> test_check("nn2poly")
[ FAIL 0 | WARN 1 | SKIP 17 | PASS 82 ]

══ Skipped tests (17) ══════════════════════════════════════════════════════════
• On CRAN (12): 'test-constraints_luz.R:5:3', 'test-nn2poly.R:77:3',
  'test-nn2poly_methods_plot.R:1:1', 'test-nn2poly_methods_plot.R:23:1',
  'test-nn2poly_methods_plot.R:45:1', 'test-nn2poly_methods_plot.R:66:1',
  'test-nn2poly_methods_plot.R:90:1', 'test-nn2poly_methods_plot.R:114:1',
  'test-nn2poly_methods_plot.R:139:1', 'test-parameters.R:58:3',
  'test-plot_diagonal.R:1:1', 'test-plot_diagonal.R:13:1'
• {keras} cannot be loaded (5): 'test-constraints.R:3:3',
  'test-nn2poly.R:58:3', 'test-parameters.R:2:3', 'test-parameters.R:27:3',
  'test-plot_taylor_and_activation_potentials.R:2:3'

[ FAIL 0 | WARN 1 | SKIP 17 | PASS 82 ]
Deleting unused snapshots: 'nn2poly_methods_plot/top-null.svg'
Warning message:
`teardown()` was deprecated in the 3rd edition.
ℹ Please use test fixtures instead see vignette('test-fixtures') for details 
> 
> proc.time()
   user  system elapsed 
   8.85    1.06   11.04